Skip the auto shop - Our mechanics make house calls

Q: Why do I get heavy fumes smell while the car idles?

asked by on

Heavy fume smell while car is idealing

Hi there. Check the ignition system to see if the spark plugs have wet fuel on them. If they have fuel on them, then check to see if the spark plug wires are good and have any burn spots. Check to see if the ignition coil it producing any voltage. If the ignition system is good, then check the injectors. The injectors could be leaking and making extra fuel go into the combustion chamber, which then will blow into the exhaust system. Replace any parts that you find not working. If you need further assistance with the fuel exhaust smell when the vehicle is at idle, then seek out a professional, such as one from Your Mechanic, to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How to change the lifters

In order to replace the valve lifters, removal of the valve covers and rocker arm assemblies is required. The job can be a little extensive and many of the fasteners removed cannot be reused or they may cause damage to...

Q: Slow acceleration and gasping noise -1985 Chevrolet C10

Hello. There are multiple possibilities here. There could be a vacuum leak to the engine (which affects timing, mixture, etc.) all of which kick in when under a load (vs. idling). Also, check ignition timing, especially ignition advance mechanisms, for...

Q: require assistance for removal of front and rear seats of audi a8

For your Audi R8, you will first need to disconnect the battery to disable the air bags, but before doing so, you will need to use power seat and move the seat forward to remove the seat rear anchor bolts,...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.